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If you ever wondered, Eclipse has project for Ruby (along with PHP & Python) inside DLTK (Dynamic Languages Toolkit) project. You can install it any time from Eclipse update site or using Install button or in Marketplace client. Please add this logo to your site if you are using Eclipse

When hoovered over [insall], and followed instruction to Drag to "running eclipse workspace", the icon simply jumped back to webpage. So, then opened file brower and did same there and it worked and now there's a file, "Ruby (DLTK).desktop" in the directory for my workspace; however, now I've no idea what to do. I've examined all the buttons in my workspace and none suggest anyway to make use of the "Ruby(DLTK).desktop" file. This is **so** counterintuitive :(